Today only, SharkStores offers this 0.10-Total Carat Weight Diamond Infinity Pendant Necklace for $29. Apply coupon code "3DEALNEWS3" to cut it to $26. With free shipping, it's $6 under the lowest total price we could find for a similar pendant elsewhere. It features 12 round-cut diamonds set in 18K gold-plated sterling silver. It comes with an 18" chain.

EBGames offers Final Fantasy XIII-2 Collector's Edition for PlayStation 3 (pictured) or Xbox 360 for $59.99 with $3.50 for shipping. That's the lowest total price we could find for either platform by $16. Sales tax is added where applicable. It features digipack packaging, including a slipcase 4-disc official soundtrack, and contents of concept art book, bound directly into the packaging.

heightsmobile via eBay offers the Unlocked LG Quantum C900 Touchscreen Windows Smartphone for $149.95 with free shipping. That's $50 under our August mention and the lowest total price we could find by $5. This smartphone features a 1GHz processor, 3.2" 800x400 touchscreen, slide-out QWERTY keyboard, 16GB built-in memory, 802.11n wireless, GPS, 5-megapixel camera, 720p HD video capture and playback, microSD slot, USB connectivity, Windows Mobile 7 OS, and more. Deal ends August 31.

Gamestop offers the used Apple iPhone 3G 8GB Smartphone for AT&T Wireless in Black for $107.99 plus $4.99 for shipping. That's $1 below last week's mention of an open-box phone, and the lowest total price we could find for a refurb by $173. Sales tax is added where applicable. It features compatibility with AT&T's 3G network, built-in GPS navigation with Google Maps, a 3.5" 480x320 touchscreen, five hours of talk time, and more.

Note that no warranty information is provided.

Microsoft Store offers the 2.98-lb. Acer Aspire Ultrabook S3-951-6464 Intel Core i5 1.6GHz 13.3" LED-Backlit Widescreen Notebook, model no. LX.RSF02.188, with a $200 Microsoft Credit for $899 with free shipping. Assuming you use the credit, that's $50 under our mention from a week ago and the lowest total price we could find by $105. Sales tax is added where applicable. This laptop features an Intel Core i5 2467M 1.6GHz dual-core processor, 13.3" 1366x768 LED-backlit widescreen LCD, 4GB RAM, 20GB SSD and 320GB hard drive, 802.11n wireless, Bluetooth, media card reader, 3-cell battery, webcam, HDMI output, and Windows 7 Home Premium.

Today only, GraveyardMall offers the Oglo Sports Glow in the Dark Boomerang 3-Pack for $9.99 with free shipping. That's the lowest total price we could find in this quantity by $34. This set of three tri-blade boomerangs come in three colors, and purportedly glow for hours after light exposure.

Gap takes 25% off sitewide, even on sale items, via coupon code "GAPSTYLE". That's among the best coupons we've seen from Gap in recent weeks, although we listed a 25% off sitewide discount two weeks ago (since expired). Shipping starts at $7, or get free shipping on orders over $50. Sales tax is added where applicable and some exclusions may apply. Deal ends February 25.

The Beloved Hotel in Playa Mujeres, Mexico, offers all-inclusive stays for 2 with prices starting at $316 per night, as provided by Travel-Ticker. (If prompted, sign up for the free newsletter to see this deal; click on "Get this Deal" for complete details.) That ties last week's mention and it's the lowest current rate we could find for an all-inclusive stay for two at this property by $5. Book by February 28 for stays August 14 through October 31. Additional fees and restrictions may apply.

BookIt offers stays for 2 at the all-inclusive Sens del Mar Hotel in Cancun, Mexico, (adults only) bundled with unlimited golf and free use of a Smart Car with prices starting at $173.34, as seen on Travelzoo. That's the lowest current rate we could find for a an all-inclusive stay for two at this hotel by $17. Book by February 29 for stays through December 20. Blackout dates and additional taxes and fees may apply.

Of note, BookIt offers stays in other hotels in or around Cancun with prices starting at $39 per night. Scroll down to see them all.

BookIt offers 2-night stays for 2 at the all-inclusive Hotel Riu Palace in Cancun, Mexico, bundled with a $20 spa credit with prices starting at $515.22, as provided by Travel-Ticker. (If prompted, sign up for the free newsletter to see this deal; click on "Get this Deal" for complete details.) Assuming you use the credit, it's the lowest current rate we could find for a 2-night, all-inclusive stay for two at this hotel by $20. Book by February 28 for stays through October 25. Blackout dates and additional taxes and fees may apply.

Of note, BookIt offers stays in other hotels in or around Cancun with prices starting at $39 per night. Scroll down to see them all.